-- Tri-Band Repeater (Model: RP33EDW)
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User Manual
Tri-Band Repeater
(900/1800/2100)
User Manual
2015 February
Information in this manual is subject to change without notice
-- Tri-Band Repeater (Model: RP33EDW)
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User Manual
Table of Contents
1. Description ................................................................................................................................ 3
2. Technical Specifications ............................................................................................................ 5
3. System Diagram ........................................................................................................................ 6
3.1 Product Features ............................................................................................................ 7
3.2 Applications Example-- Shadow Coverage .................................................................. 7
4. Operation ................................................................................................................................... 8
5. Installation ................................................................................................................................. 9
5.1 Donor Antenna Installation ........................................................................................... 9
5.2 Cable layout ................................................................................................................ 10
5.3 Isolation and Separation .............................................................................................. 12
PLEASE READ THE QUICK START GUIDE AND FOLLOW THE STEPS CAREFULLY. THIS
QUICK START GUIDE WILL HELP YOU INSTALL THE DEVICE PROPERLY AND AVOID
IMPROPER USAGE.
IF YOU HAVE OTHER INQUIRES OR NEED FURTHER TECHNICAL SUPPORT, PLEASE
CONTACTH WITH US IVA EMAIL : [email protected]
-- Tri-Band Repeater (Model: RP33EDW)
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User Manual
1. Description
The TriBand Selective Repeater is designed to provide a more cost-effective solution than adding a new Base Transceiver Station (BTS) to improve signal coverage and communication quality
It can be equipped with three sub bands for three service network (900/1800/2100)to provide outdoor coverage for mobile signals.
The repeater is working as a relay between the BTS and mobiles. It receives the low-power signal from BTS via the Donor Antenna, linearly amplifies the signal and then retransmits it via the Coverage Antenna to the weak/blind coverage area. And the mobile signal is also amplified and retransmitted to the BTS via the opposite direction.
No. Item Usage Note
-- Tri-Band Repeater (Model: RP33EDW)
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User Manual
○1 BTS Tower(operator base
station tower)
Donor site, provide 2G/3G signal by
operator
Ex. Vodafone, Orange
○2 External Antenna(Outdoor
antenna)
Donor antenna , Receive signal from
BTS tower
Ex. Log period antenna,
Yagi antenna
○3 Cable Connection between antenna and
repeater
Ex. LMR400,LMR600,
50-5D
○4 Repeater Amplifies Signal from BTS via donor
antenna
Ex. Single band, dual
band, triband
○5 Internal Antenna(Indoor
Antenna)
Service antenna, transmit the signal
to coverage area after repeater
Ex. panel antenna.
It will reduce site deployment cost by using one tri band donor antenna, one tri
band service antenna, and tri band repeaters in one enclosure.
It is applied to expand signal coverage or fill signal blind area where signal is
weak, such as shop mall, bus station, factory, hotel and village etc.
-- Tri-Band Repeater (Model: RP33EDW)
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User Manual
2. Technical Specifications
Items Specification
Uplink Downlink
Network(Customized) EGSM/ 3G
Frequency (Customized)
925MHz～960MHz 880MHz～915MHz
1805MHz～1880MHz 1710MHz～1785MHz
2110MHz～2170MHz 1920MHz～1980MHz
Gain (Customized) ≥85 dB ≥ 90 dB
Output Power (Customized) 27±2 dBm 33±2 dBm
Gain Adjustment Range ≥ 30 dB
Gain Adjust precision 0～10dB/±1dB#10～20dB/±1.5dB#20～31dB/±2dB
ALC Scope ≥ 20dB
In-Band Ripple ≤ 3 dB
Out-of-Band Suppression ±600kHz > 30dB, ±1MHz > 40dB, ±5MHz > 50dB,
I/O Impedance 50 Ω
VSWR ≤1.5
Load VSWR Tolerance 20:1
Noise Figure ≤ 5dB
Inter-modulation Attenuation 45dBc
Spurious Emission ≤-36dBm(9KHz～1GHz)/≤-30dBm(1～12.75GHz)
System Delay ≤ 5μs
Max Input Power Level(1minute) -10dBm
RF Connector N-Type (Female)
Temperature Range Operation: -25°C ~ + 55°C;Storage: -30°C ~
+60°C
Relative humidity 5~95% RH
Power consumption 100W
Power Supply (Customized) AC100~240V
Power Supply socket (Customized) BP3 Type
Dimensions 420mm×330mm×240mm
Weight 15kg
Cabinet Color Silver white
Installation Wall-mounted
Monitor/Setting Parameter Inquiry: Power, Gain
Set: ATT
-- Tri-Band Repeater (Model: RP33EDW)
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User Manual
3. System Diagram
The RF link (donor) towards the base station is typically fed from an
outdoor antenna while the coverage area is fed by an indoor antenna
The signal from the base station is received via theTriband Donor
antenna, then forwarded through a Combiner, is amplified in a low
noise amplifier (LNA), and enters the band selective amplifier board
(BSA).
The first mixer stage on the BSA amplifier board, which is controlled by a
synthesizer, converts the received frequency down to the IF frequency.
The signal is then filtered by an IF SAW band-pass filter and amplified
before it is fed to the second mixer stage, controlled by the same
synthesizer as the previous one, for converting back to the original
frequency.
The output signal from the mixer is then amplified in the power amplifier,
which is controlled by the CU(Control Unit board).The output signal
passes a Quad filter (QPX), before it is fed to the triband MS antenna
which retransmits the signal at the same frequency to the aim areas.
-- Tri-Band Repeater (Model: RP33EDW)
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User Manual
3.1 Product Features
High selectivity hence excellent out-of-band signals rejection
Smart Automatic Level Control (ALC) to reduce interference to BTS
Linear power amplification to effectively suppress inter-modulation and
spurious emission
Independence control gain & inspect alarm information for each band
An alarm interface with unique color LEDs to indicate alarm of power
supply alarm, VSWR and low signal level
Dual ports and full duplex design
System Monitor through RJ45 port with easy to view GUI
Designed for indoor /outdoor applications
3.2 Applications Example-- Shadow Coverage
A valley is shaded by hills. There is a base station 5 kilometres away, but the lowest signal
strength in the valley is less than –100dBm. A mast used for other purposes is available
for a repeater installation. The mast height is 42 meter and it is located on a hill. The
scenario is illustrated as following picture.
1) The signal strength (includes donor antenna) from donor BTS must be 5dB larger
than from neighbour BTs in GSM network and larger>-50dBm, so the repeater can
amplifier in high efficiency with full output power.
2) The donor antenna should have line of sight (LOS) with the BTS antenna. If the signal
-- Tri-Band Repeater (Model: RP33EDW)
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User Manual
strength is adequate, LOS may in some cases not be necessary.
3) Donor antenna gains are typically 18 to 25 dB, and have a horizontal and vertical
beam width of less than 30° to correctly select the donor BTS.
4) There is large physical separation between the antennas in order to prevent
degradation of signal quality and risk of oscillation (Antenna isolation). Ways to
achieve this can be usage of highly directional antennas with good front-to-back
interference ratio or external shielding between the antennas. Another option is to use
a Frequency Translating Repeater or ICS repeater.
4. Operation
Power 220V Power supply switch on
Sys-1 850M, Alarm when output power is
higher than max output power
Push Button Select to change current system
Sys-2 2600M, Alarm when output power is
higher than max output power
Sys-3 Not used
+ Increase UL/DL Gain Notice:
Press Gain Button to light gain value LED, then Press
Button SEL to select system - Decrease UL/DL Gain
- Put one load to MS port as below diagram
- Power switch ON.
- Select system via Button “SEL” in monitor board.
- Decrease Band 850 gain(Downlink) until sys1 not alarm if BTS signal is too
strong (850 M DL LNA module)
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User Manual
- Decrease Band 2600 gain(downlink) until sys1 not alarm if BTS signal is too
strong (2600M DL LNA module)
- Set uplink gain=downlink gain-5 for each band. (UL PA module)
-
- Remove load and connect MS port to indoor antennas system.
- Check LED status, if LED RED ON, it means there is antenna isolation problem,
in this case, we do:
Move indoor antenna far from external antenna.
Reduce repeater gain according to BAND LED .
5. Installation
5.1 Donor Antenna Installation
Find a good spot to mount the antenna, such as a chimney or rooftop, to avoid trees,
building, and any metal objects.
Find the location and best angle for getting the strongest signal from the base station. The antenna must be directed towards the nearest base station.
It requires a minimum signal level in the place where install the donor antenna.
Failure to provide sufficient input signal will only result in a poor coverage inside the
building for this repeater system. To check signal levels, use the phones in the place
where antenna be install (on the roof) and observe the signal bars on the phone. The
Donor (outside) antenna should be placed in the location where you get the most
signal.
-- Tri-Band Repeater (Model: RP33EDW)
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User Manual
Temporarily mount the Donor (outside) antenna in that location. It may need to adjust and move the antenna later.
Fine-tuning the antenna orientation (in horizontal/vertical position or 45 degree angle position) to have the best signal strength (after repeater on)
5.2 Cable layout
Run one coaxial cable into the building to repeater location where you can also get standard 220/110VAC power for the repeater. Connect coaxial cable between the outdoor antenna and the repeater BTS port.
-- Tri-Band Repeater (Model: RP33EDW)
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User Manual
Cable layout through walls – “U” Dripping bend
Run one coaxial cable inside the building. Connect the coaxial cable between the indoor antenna and the repeater MS port.
RF connectors should be link tighten;
Cable bending radium meets technical requirement
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User Manual
5.3 Isolation and Separation
Isolation refers to the proper distance or separation needed to keep the Donor
antenna signal pattern and the Coverage antenna signal pattern away from
each other.
Isolation becomes particularly problematic when Omni-directional antennas
are used for both the Donor and the Coverage antennas. Since these
antennas transmit in a circle (or more accurately a sphere) it is very easy for
these spheres to overlap and thus negate the repeater system.
